Objective To investigate the relationship between CT performance of Hver cirrhosis and liver fibrosis factors.Methods 89 hospitalized patients were graded for the CT performance of the liver cirrhosis:O class (have no cirrhosis),Ⅰ,Ⅱ,Ⅲ,Ⅳ class.Then to compare the examination data of senlm liver fibrosis factors:type Ⅲ procollagen(Prop),Ⅳ collagen(Ⅳ-C),laminin(LN),hyaluronie acid(HA).Results O class(have no cirrhosis in the sufferer):four index signs all has no increase.Ⅰ class:the Ⅳ-C slightly goes up.Ⅱ class:Ⅳ-C,the HA slishtly goes up.Ⅲ class:the three of Ⅳ-C,HA,LN rises,the HA is distinct.Ⅳ class:four index signs all go up obviously.Conclusion With the CT performance of liver cirrhosis is obvious,the hver fibrosis factors get obvious,too.Both of them get positive correlation.

Objective　In order to improve diagnosis of the disease,CT appearances of pulmonary sequestration were studied.Methods　10 cases were proved by surgery and pathology.Lung inner type was in 9 and lung exterior type in 1.All cases were examined with plain CT scans and 5 of them were taken thin slice CT scan with contrast enhancement.Results　10 cases located in the posterior segment of right or left lower lobes,3 of them were cystic,3 were solid,4 were cystic and solid.The emphysema around the lesions were showed in 7 cases.Abnormal arterial supply could be seen in 7 cases.Conclusion　CT not only can demonstrate lesions and changes of tissue surrounding lesions,but also can manifest abnormal supplying blood vessels well.CT plays important role to diagnose pulmonary sequestration.

Objective:To evaluate the effects of different enamel conditioners in combination with an adhesive on the shear bond strength and the adhesive remnant index in vitro.Methods:One hundred and eight permanent healthy premolars from orthodontic patients and fresh saliva from a healthy young volunteer were collected.The teeth were cleaned,dried and etched by phosphoric acid,polyacrylic acid or Transbond plus SEP respectively(36 teeth for each agent).Then the teeth were bonded to brachet by RMGICs with the presence of water,saliva on the tooth surface or without any of them respectively(12 teeth in each group).After bonding,all samples were tested on a testing machine of Instron.Shear bond strength and adhesive remnant index were recorded.Results:Highest mean shear bond strength was observed in the group of teeth etched by Traspond plus SEP and bonded by RMGICs with the presence of saliva.Higher mean shear bond strength was obtained with the presence of saliva or water on the tooth surface than without any of them.Conclusion:Transbond plus SEP conditioning followed by RMGICs bonding may produce high shear bond strength between moistured tooth surface and brachet.

Objective To compare tbe efficacy of conventional therapy,psychotherapy,serotonin reuptake in- hibitor,and psychotherapy combined with serotonin reuptake inhibitor in rehabilitating nerve function in the treatment of post-stroke depression.Methods One hundred and twenty patients with post-stroke depression were divided into a control group(A),a group treated with serotonin reuptake inhibitor (B),a psychotherapy group (C) and a group in which psychotherapy was combined with serotonin rcuptake inhibitor(D).These groups were graded with the SDS for the degree of their depression and with the MESSS for their muscle strength before andafter treatment.Results The anti-depression therapies showed significantly different effects in improving depression.After eight weeks,group D showed significantly less depression than the others.However,muscle strength did not show statistically significant differences until twelve weeks,when group D again showed better progress than the others.Conclusion Psychothera- py combined with serotonin reuptake inhibitor can promote the rehabilitation of nervous function-after stroke.

Objective To explore surgical strategy for patients with hilar cholangiocarcinoma (HCC) and study prognostic factors after curative treatment. Methods We retrospectively reviewed medical records of 41 patients with HCC surgically treated in our department during the 9-year period from January 1999 to February 2007. Clinicopathological factors were evaluated for their association with post-operational survival by univariate and multivariate analysis using Cox proportional hazard model. Results All the 41 patients underwent laparotomy following preoperative assessment of extent of disease and 21 patients (resectability rate 51.2%) ultimately underwent resection with curative in-tent. In the resection group, R0 radical resection was possible in 11 patients, while R1 resection in 6and R2 in 4. Different types of hepatectomy were combined to accomplish resection. Meanwhile, por-tal vein wedge resection or reconstruction was needed in two patients. The 1-, 3-and 5-year survival rates were 41.5%, 14.6% and 4.9% in the overall group and 71.3%, 28.6%, 9.5% in the resection group, respectively. In R0-resection, Rl-resection and R2 resection group, the 1-,3-and 5-year sur-vival rates were 81.8% ,45.5% ,18.2% ;66.7% ,16.7% ,0 and 50% ,0,0, respectively. Survival rates after resection were significantly higher than those after palliative drainage and exploratory laparotomy (P<0. 001). Higher survival rates were seen in R0-resected patients when compared with Rl-or R2-resected patients (P<0.001). Multivariate analysis revealed that tumor-free margins, pTNM stage and combined hepatectomy were independent prognostic factors affecting survival. Conclusion Only surgery can provide chance to achieve the possibility of cure and long-term survival. Tumor-free margins, pTNM stage and combined hepatectomy are the most important prognostic factors affecting the survival.

In this paper,a time-frequency approach is used for the recognition and analysis of ECG signals for a normal or an abnormal patient.An iterative deconvolution procedure is applied to calculate the time-frequency representations.This method can enhance the resolutions of the signals.

To study the effects of the material of a buildup cap to the determined value of Output FactorSc．Material and MethodsUsing two buildup caps made of plastic A－150 and copper respectively．The ionizing values of ionization chamber were measured with Farmer 2570 electrometer in the fields of all kinds of sizes respectively and calibrated to reference field．Two groups of values of Sc were obtained and compared． Results The ionizing values measured with the buildup cap of copper is evidently larger than with the buildup cap of plastic A－150 and the maximum is 14％ but the difference between two groups of the values of Sc is not much evident and all is in the range of 1％． Conclusions Though the material of high density is not equivalent with airthe effects of that to the measured value of Sc is less．So using the buildup cap made of the material of high density for the measurement of Sc is also a quite good method specially in the fields of the small sizes．

OBJECTIVE:To establish the HPLC fingerprint of Abrus mollis seed. METHODS:HPLC was performed on the column of Inertsil ODS-3 C18 with mobile phase of acetonitrile-0.1% phosphoric acid(gradient elution)at flow rate of 1.0 ml/min, detection wavelength was 270 nm,column temperature was 30 ℃ and volume injection was 10 μl. With the reference of abrine, 10 batches of A. mollis seed were analyzed,and similarity evaluation was performed by using chromatographic fingerprint of TCM. RESULTS:There were totally 12 common peaks,and the similarity was more than 0.9. According to the verification,the finger-print of A. mollis seed has good consistency with the reference fingerprint. CONCLUSIONS:The established fingerprint can pro-vide reference for the identification and quality evaluation of A. mollis seed.

0.05); VEGF at 50 ng/ml and 100 ng/ml with the exposure time of 5 d increased the incorporation( P

Objective To study relation between tumor blood vessels around hepatocellular carcinomas and metastases and try to find out probability to predict potential metastases of hepatocellular carcinomas according to CT manifestation.Methods Both CT plain scans and dynamic contrast scans were taken in 134 cases of patients with hepatocellular carcinomas.The tumor blood vessels around and in cancers were counted.CT appearances,pathology results and patient follow-up were compared and analyzed.Results 1.The possibilty to happen metastases was much higher in carcinomas with heavy enhancement than that with gently or middle.2.Those with tumor blood vessel around neoplasm were greater metastasis rate than those without them.3.The enhancement degree in tumor border is positive correlation with blood count.Conclusion The latent metastases can be estimated according to the enhancing degree and tumor blood vessels around carcinomas.